This industry in the GIS is called remote sensing which collects information about objects or areas from a distance by aircraft or satellite. The process identifies and measures the physical characteristics of an area by measuring its reflected and emitted radiation at a distance from the target. The applications of remote sensing are found in …
Satellite towns are an emerging phenomenon in a rapidly urbanizing world. A smaller municipality or town situated near a major metropolitan city acts as a complementary center in the urban scheme of things. Satellite towns have been in existence for centuries but are now gaining attention for relieving pressures on overcrowded cities and planned expansions. …
Geographic Information Systems emphasize the importance of the term “temporal resolution.” The frequency at which data has to be captured or observed above a given location on the Earth’s surface is known as temporal resolution. The time gap between two successive images or data acquisitions taken above the same geographic area can be defined as …
GIS and remote sensing define spatial resolution as one of the definitions: it represents the degree of spatial detail in an image or dataset. It is represented by the minimum object that may be detected by a sensor on the image. Spatial resolution, therefore is the clue to knowing the level of precision with which …
Resolution in the GIS world relates to that of the quality and accuracy of spatial data. Resolution, referring to the amount of detail, is what geographic features are represented with in GIS terms. High resolution data plays a very important role in various industries and has applications in remote sensing, cartography, environmental monitoring, and urban …
Aerial remote sensing is an essential technology meant for extracting information from the Earth’s surface using airborne onboard sensors. It is actually about receiving, measuring, and interpreting energy reflected or radiated by any object at the Earth’s surface that is exposed to any portion of the electromagnetic spectrum. Aerial remote sensing is of much significance …
Remote sensing is a vital technology that revolutionized how we observe, understand, and interact with the Earth’s surface and atmosphere. It encompasses the acquisition, processing, and interpretation of information about objects or areas from a distance, typically through the use of satellite or airborne sensors. The science of remote sensing plays a central role in …
The term Synthetic Aperture refers to the technique SAR uses to achieve high spatial resolution where by moving the radar along a flight path and combining the signals over time, Synthetic Aperture Radar effectively synthesizes a large antenna aperture increasing the resolution beyond what a real antenna of similar size could achieve. This results in …
A Digital Elevation Model is essentially a raster dataset that stores elevation data for a geographic region. Each pixel (or cell) in the raster contains a value representing the elevation at that specific location. DEMs are typically represented as a grid, with rows and columns corresponding to latitude and longitude. The resolution of the DEM …
Satellite imagery is a critical component of the Geographic Information Systems (GIS) industry, offering a bird’s-eye view of the Earth’s surface. This technology captures images from space via satellites equipped with advanced sensors, providing detailed information that is invaluable for a variety of applications. Satellite imagery refers to images of the Earth or other planets …
